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The term "8P in a G" refers to the phrase "8 Pieces in a Game," which is often used in the context of chess or other strategy games. It suggests that there are eight key pieces or elements to consider when analyzing or playing the game. This shorthand can help players focus on important aspects of gameplay or strategy.
Key of F#, key of B, key of E, key of A, key of D, and key of G
I think super key is treated as the primary key because in a table their will be only one primary key.
We designate one of the candidate key of a relation to be a primary key because that primary key is use for any foreign key references.
A Dorian key signature is an earlier style of key signature used on pieces in minor keys. A good example is J.S. Bach's Toccata and Fugue in D Minor, BWV 538, that was notated with a key signature of zero flats rather than the one flat of a contemporary key signature notation for D Minor. The Dorian mode is a mode of the major scale built off of the second scale degree of a major scale and, therefore, a Dorian key signature for D Minor would be the signature for the major scale a whole step below: C Major...therefore zero flats. The D Dorian scale is spelled D, E, F, G, A, B, C and therefore shares the same key signature as C Major in this older notational system. It is now customary within the western tonal system to relate minor keys to the key signature of the major key found a minor third above. D Minor is now written with one flat, the key signature of F Major. Today the "natural minor" scale or Aeolian mode (the mode built off the 6th scale degree of major) is the common reference point for a minor key's key signature.